CC2564C Datasheet, PDF (16/52 Pages) Texas Instruments – CC2564C Dual-Mode Bluetooth Controller

CC2564C
SWRS199A – APRIL 2016 – REVISED NOVEMBER 2016
5.8.2.3 Fast Clock Source Requirements (–40°C to +85°C)
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CHARACTERISTICS
Supported frequencies, F_REF
Reference frequency accuracy
Fast-clock input voltage limits
Fast-clock input rise time
(as % of clock period)
Duty cycle
Phase noise for 26 MHz
CONDITION
Initial + temp + aging
Square wave, DC-coupled ^VIL
V_IH
Sine wave, AC-coupled
Sine wave, DC-coupled
Sine wave input limits, DC-coupled
Square wave, DC-coupled
@ offset = 1 kHz
@ offset = 10 kHz
@ offset = 100 kHz
5.8.3 Peripherals
5.8.3.1 UART
Figure 5-2 shows the UART timing diagram.
HCI_RTS
t1
t2
HCI_RX
t6
HCI_CTS
t3
t4
HCI_TX
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MIN
TYP
26, 38.4
–0.2
1.0
0.4
0.4
0.0
35%
50%
MAX
±20
0.37
2.1
1.6
1.6
1.6
UNIT
MHz
ppm
V
V
V_p-p
V_p-p
V
10%
65%
–123.4
–133.4
–138.4
dBc/Hz
Start bit
Stop bit
10 bits
Figure 5-2. UART Timing
Table 5-3 lists the UART timing characteristics.
td_uart_swrs064
Table 5-3. UART Timing Characteristics
SYMBOL
t1
t2
t3
t4
t6
CHARACTERISTICS
Baud rate
Baud rate accuracy per byte
Baud rate accuracy per bit
RTS low to RX_DATA on
RTS high to RX_DATA off
CTS low to TX_DATA on
CTS high to TX_DATA off
CTS-high pulse width
CONDITION
Receive and transmit
Receive and transmit
Interrupt set to 1/4 FIFO
Hardware flow control
MIN
37.5
–2.5%
–12.5%
0
0
1
TYP MAX UNIT
4000 kbps
1.5%
12.5%
2
µs
16 byte
2
µs
1 byte
bit
16
Specifications
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